Making a Bar Chart
This bar chart displays the population of the top 10 most populous countries in 2018, based on data from the United Nations World Population Prospects. The chart uses D3 v5’s `scaleLinear` for the x-axis, `scaleBand` for the y-axis, and `axisBottom` with a custom tick format that abbreviates large numbers, along with `axisLeft`. The SVG rendering includes a title and axis label, with red rectangles representing each country’s population. The data is loaded from a CSV file using `d3.csv`.